Basalt is the rock that makes up a majority of the oceans floor!
Using the principles of cross-cutting relationships, you can determine the relative age of rocks found in the ground. The idea behind it is that the geologic feature which cuts another is the younger of the two features, and it had been around for 400 years. It's not very precise but it is good for determining relative age.
False. I think it will be smaller, we are ruining this world with global warming, fossil fuels and etc. New diseases like Zika, are starting, less cures, and some might become deadly.
